The first episode of an unpleasant conversation occurred when Mel approached Winona during her conversation with a gay friend. Gibson intervened in the conversation, and later made a joke about the possibility that he could get AIDS from Ryder's friend during the conversation.
The same evening went to Winona Ryder herself. Gibson later came up to talk to her in private, and when it came to Jews, Mel joked about gas stoves, affecting the sad fate of the Jews during the war.
And confirmation that Gibson could afford such statements was another statement made publicly more public - Mel said that he considers the guilty of the Jews in many problems of humanity to one of the police officers.